Control apparatus and method for internal combustion engine

Details Control apparatus and method for internal combustion engine Control apparatus and method for internal combustion engine

1996-07-11

1998-07-14

Wolfe, Willis R.

Power plants

Internal combustion engine with treatment or handling of...

Methods

60285, F01N 320, F01N 336

Patent

active

057786623

ABSTRACT:
In control apparatus and method for an internal combustion engine, an incremental correction coefficient for a basic fuel injection (supply) quantity is carried out in such a way that an excess coefficient at an inlet portion of a three-way catalytic converter interposed in an exhaust passage of the engine gives a predetermined value and a retardation correction quantity by which a basic ignition advance angle (ADV) is retarded is determined when a secondary air is supplied into a portion of the exhaust passage which is located upstream with respect to the catalytic converter and an engine driving condition falls in an idling state.

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